package scenic.study.thinkinjava.unit12;//: Compete.java

import java.io.*;

class Thing1 implements Serializable {
}

class Thing2 implements Serializable {
    Thing1 o1 = new Thing1();
}

class Thing3 implements Cloneable {
    public Object clone() {
        Object o = null;
        try {
            o = super.clone();
        } catch (CloneNotSupportedException e) {
            System.out.println("Thing3 can't clone");
        }
        return o;
    }
}

class Thing4 implements Cloneable {
    Thing3 o3 = new Thing3();

    public Object clone() {
        Thing4 o = null;
        try {
            o = (Thing4) super.clone();
        } catch (CloneNotSupportedException e) {
            System.out.println("Thing4 can't clone");
        }
        // Clone the field, too:
        o.o3 = (Thing3) o3.clone();
        return o;
    }
}

public class Compete {
    static final int SIZE = 5000;

    public static void main(String[] args) {
        Thing2[] a = new Thing2[SIZE];
        for (int i = 0; i < a.length; i++)
            a[i] = new Thing2();
        Thing4[] b = new Thing4[SIZE];
        for (int i = 0; i < b.length; i++)
            b[i] = new Thing4();
        try {
            long t1 = System.currentTimeMillis();
            ByteArrayOutputStream buf =
                    new ByteArrayOutputStream();
            ObjectOutputStream o =
                    new ObjectOutputStream(buf);
            for (int i = 0; i < a.length; i++)
                o.writeObject(a[i]);
            // Now get copies:
            ObjectInputStream in =
                    new ObjectInputStream(
                            new ByteArrayInputStream(
                                    buf.toByteArray()));
            Thing2[] c = new Thing2[SIZE];
            for (int i = 0; i < c.length; i++)
                c[i] = (Thing2) in.readObject();

            long t2 = System.currentTimeMillis();
            System.out.println(
                    "Duplication via serialization: " +
                            (t2 - t1) + " Milliseconds");
            // Now try cloning:
            t1 = System.currentTimeMillis();
            Thing4[] d = new Thing4[SIZE];
            for (int i = 0; i < d.length; i++)
                d[i] = (Thing4) b[i].clone();
            t2 = System.currentTimeMillis();
            System.out.println(
                    "Duplication via cloning: " +
                            (t2 - t1) + " Milliseconds");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
} ///:~